exam Maths Puzzle Numerical Ability

Hi,
Solve the sysytem of equations.
7X-2Y=3
3X+5Y=13
thank you!

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exam Other Question

-tu-vw=t Solve for v. A person invested $10,000.00. The greater part is invested at 6% and the remainder at 5%. The annual income from the greater part is $160.00 more than the annual income from the smaller part. What is the smaller part of the investment?